Conferences Activities (selection)
2023:
Doering K., Z. Zhang, Y. Dai, W. Dummann, R. A. Pickering, K. Bryka, T. Störling, C. Schröder-Adams, S. Richoz, M. Frank, J. Herrle, D. Harwood and D. Conley: ‘The Silica Cycle on a continental Shelf during the Upper Cretaceous: Reconstructions of Silicon Isotopes of Sponges, Radiolaria and Diatoms’. Contribution: Talk. Goldschmidt Conference 2023, 9-14 July, Lyon, France, 2023.
Dai Y., Z .Zhang, S. Richoz, K. Doering, F. M. Stamm, J. Yu, Z. Xu Sr., M. Frank and D. Conley: ‘Coupled marine silica and carbon cycle changes after the Palaeocene Eocene Thermal Maximum’. Contribution: Poster. Goldschmidt Conference 2023, 9-14 July, Lyon, France, 2023.
törling T., L. Friberg, L. Cassarino, Rebecca A. Pickering, K. Doering, F.M. Stamm, K. R. Hendry, S. Richoz and D. Conley:‘Effects of the K-Pg Boundary Event on the Ocean Silicon Cycle: What sponge spicule and radiolarian silicon isotopes can show us’. Contribution: Poster. Goldschmidt Conference 2023, 9-14 July, Lyon, France, 2023.
2022:
Doering K., J. Weiser, N. Lehmann, S.S. Kienast, M. Kienast, D. Hebbeln, M. Frank and R. Schneider: ‘Comparison of modern and Holocene nutrient cycling in the Labrador Sea: A multiproxy application of nitrogen and silicon isotopes’. Contribution: Poster. 14th International Conference on Paleoceanography (ICP14), Bergen, Norway.
Grasse P. and K. Doering: ‘Taxon specific fractionation in silicifiers: ‘What we know and what we don’t know!‘. Contribution: Talk. Isotopes in Biogenic Silica (IBiS2022), 14-16 June, Lund, Sweden, 2022.
Doering K., Laukert G., Kienast S. S., Kienast M., Kassens H. and M. Frank: ‘Differing silicon isotope compositions of sponge spicules from Arctic and North Atlantic shelf sediments‘. Contribution: Talk. Isotopes in Biogenic Silica (IBiS2022), 14-16 June, Lund, Sweden, 2022.
2021:
Laukert G., Grasse P., Novikhin A., Povazhny V., Doering K., Hölemann J., Janout M., Bauch D., Kassens H. and M. Frank: ‘Nutrient inputs, utilization and cycling in the Laptev Sea constrained by macronutrient concentrations and stable silicon isotopes’ contribution: Talk. Goldschmidt virtual, 2021.
2020:
Erdem Z., Doering K., Schneider R., Sinninghe Damsté J. S. and S. Schouten: ‘Upwelling history from northern Peruvian margin over the last 25 thousand years: A multi-proxy approach’ contribution: Poster. AGU fall meeting, 2020.
Glock, N., Sarnthein, M., Doering, K., Mollenhauer, G., and Salvatteci, R.: Deglacial 14C reservoir ages of surface waters at the northern boundary of Peruvian coastal upwelling, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-4727, https://doi.org/10.5194/egusphere-egu2020-4727, 2020.
Kienast, M., Davin, S., Doering, K., Hebbeln, D., Kienast, S., Lehmann, N., Schneider, R., Sherwood, O., and Weiser, J.: Isotopic evidence for changes in the origin and cycling of nitrogen in the Labrador Sea during the last 8,000 years, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-12134, https://doi.org/10.5194/egusphere-egu2020-12134, 2020.
2019:
Kienast M., Davin S., Doering K., D. Hebbeln, S. S. Kienast, M. F. Lehmann, N. Lehmann, R.R. Schneider, O. Sherwood, J. Weiser: ‘Gauging Arctic and Northwest Atlantic nitrogen cycling from Labrador Sea nitrogen isotopes’ Contribution: Poster.13th International Conference on Paleoceanography (ICP13), Sydney, Australia, 2019.
Doering K, Kienast M, Kienast S S, Frank M, Schneider R: ‘Linking changes in siliceous primary productivity in the Labrador Sea to ocean-atmosphere climate dynamics during the Holocene’ Contribution: Poster13th International Conference on Paleoceanography (ICP13), Sydney, Australia, 2019.
Doering K., Grasse P. and M. Frank: ‘Silicon isotope signatures of radiolarian and their potential to track changes in past seawater nutrient concentrations’ Contribution: Poster, Goldschmidt Conference, Barcelona, Spain, 2019.
Laukert G., Grasse P., Doering K., Novikhin A., Povazhny V., Frank M.and H. Kassens: ‘Spatial and temporal variability in supply, transport and utilization of silicate in the Laptev Sea based on dissolved stable silicon isotopes’ Arctic Science Summit Week (ASSW), Arkhangelsk, Russia 2019.
2017:
Doering K., Grasse P. and M. Frank: ‘Silicon isotope signatures of different radiolarian species off Peru: the potential to track changes in the signatures of past water masses’ Isotopes in Biogenic Silica (IBiS) Meeting 2017 in Blanes, Spain, 2017.
2016:
Doering K., Robinson R. S., Martinez P., Ehlert C., Frank M. and R. Schneider, ‘Disentangling the deglacial biogeochemical nutrient cycle off Peru based on bulk sediment, diatom-bound δ15N and δ30Si records’ Contribution: Poster12th International Conference on Paleoceanography (ICP12), Utrecht, Netherlands, 2016.
2015:
Doering K., Ehlert C., Grasse P., Crosta X., Fleury S., Frank M. and R. Schneider: ‘Combining Silicon Isotope Signatures and diatom assemblages to trace variations in the silicate utilization and upwelling intensity off Peru’ Contribution: oral presentation Isotopes in Biogenic Silica (IBiS) Meeting, University College London, UK, 2015.
2014:
Doering K., Ehlert C., Crosta X., Frank M. and R. Schneider: ‘Comparison of stable silicon isotope compositions of biogenic opal and diatom assemblages: A deglacial to Holocene records o the Peruvian upwelling’ Contribution: Poster, Ocean Sciences Meeting, Honolulu, HI, 2014.
2013:
Doering K., Ehlert C., Mollier-Vogel E., Crosta X., Robinson R.S., Frank M. and R. Schneider: ‘Stable silicon and nitrogen isotope compositions – Deglacial to Holocene changes of the nutrient cycling off Peru’ Contribution: Poster11th International Conference on Paleoceanography (ICP11), Sitges, Spain, 2013.
Invited Talks
2022:
Colloquium presentation ‘Tools to decipher the past Silica Cycle – Silicon isotope compositions of diatoms, radiolaria and sponges’ virtual oral presentationat the Geowissenschaftliches Kolloquium Wintersemester 2022/2023, Goethe University, Frankfurt, Germany.
2022:
Keynote ‘The Si isotope signature of radiolarians – drivers of their shell signatures and inter -species difference’ within the session ‘Deciphering past climates and biogeochemical cycles with geochemical proxy archives’ at the GeoMin Köln 2022.
2020:
Seminar presentation ‘The Marine Silicon Cycle: Can we reconstruct past silica concentrations’ and its utilisation’, within an Online-Seminar series in Geochemistry of the Research Group for Marine Geochemistry at the University of Oldenburg, Oldenburg, Germany.
2019:
Seminar presentation ‘Biogeochemical proxies off Peru: past changes in upwelling, productivity and nutrient cycling’ within the Department of Geology at Lund University. Lund, Sweden.